| 摘要 |
<p>A soft film in dry state capable of absorbing moisture and a blood to form a hydrogel, wherein the film can be obtained by preparing a solid matter in the form of a film in a dry state from an aqueous solution of one of polyacrylic acid and polyvinyl pyrrolidone, bringing an aqueous solution of the remaining other into contact with the solid matter in the form of a film thus obtained, and thereafter drying the material.</p> |
